4x-9=2x+x

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Solution for 4x-9=2x+x equation: 



4x-9=2x+x

We move all terms to the left:

4x-9-(2x+x)=0

We add all the numbers together, and all the variables

4x-(+3x)-9=0

We get rid of parentheses

4x-3x-9=0

We add all the numbers together, and all the variables

x-9=0

We move all terms containing x to the left, all other terms to the right

x=9

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